“The performance of the xAMP protocol on Token-Bus and FDDI NAC's”

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{{Publication
{{Publication
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|type=techreport
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|title=The performance of the xAMP protocol on Token-Bus and FDDI NAC's
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|author=Paulo Veríssimo, José Rufino, Henrique Fonseca, Luís Rodrigues
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|Project=Project:Delta-4
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|ResearchLine=Timeliness and Adaptation in Dependable Systems (TADS)
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|month=nov
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|year=1991
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        The performance of the xAMP protocol on Token-Bus and FDDI NAC's
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|abstract=There is an increasing number of distributed applications, some of them fault-tolerant, and it has been recognized that its construction may benefit from the existence of reliable broadcast protocols. Some systems are clock-driven, exhibiting tight synchrony: they rely on clock synchronization and space redundancy. Others, like the xAMp, an atomic multicast protocol for local area networks, are clock-less.  
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|author=
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        Paulo Veríssimo, José Rufino, Henrique Fonseca, Luís Rodrigues
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        http://www.navigators.di.fc.ul.pt/archive/papers/INESC-RT-101-91.pdf
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|abstract=
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        There is an increasing number of distributed applications, some of them fault-tolerant, and it has been recognized that its construction may benefit from the existence of reliable broadcast protocols. Some systems are clock-driven, exhibiting tight synchrony: they rely on clock synchronization and space redundancy. Others, like the xAMp, an atomic multicast protocol for local area networks, are clock-less.  
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This work deals with the performance implications of supporting soft real-time distributed applications, with clock-less reliable broadcast protocols. In particular it analyses the performance of the lower layers of the Delta-4 communication system, i.e. it studies the time domain behaviour of both Abstract Network and xAMp components. Throughout this report we will develop a generic model that allow us to predict protocol execution times in any architecture. Case studies concerning protocol execution on  two target LANs - the 10Mbps Token-Bus and the 100 Mbps FDDI - will be presented, showing how protocol performance scales with the utilization of high-speed networks.
This work deals with the performance implications of supporting soft real-time distributed applications, with clock-less reliable broadcast protocols. In particular it analyses the performance of the lower layers of the Delta-4 communication system, i.e. it studies the time domain behaviour of both Abstract Network and xAMp components. Throughout this report we will develop a generic model that allow us to predict protocol execution times in any architecture. Case studies concerning protocol execution on  two target LANs - the 10Mbps Token-Bus and the 100 Mbps FDDI - will be presented, showing how protocol performance scales with the utilization of high-speed networks.
Additionally a set of guidelines concerning the dimensioning of xAMp timers and performance optimizations, useful for both system configuration implementation, are presented.
Additionally a set of guidelines concerning the dimensioning of xAMp timers and performance optimizations, useful for both system configuration implementation, are presented.
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|institution=INESC
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        techreport
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|number=RT/101-91
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|note=
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|url=http://www.navigators.di.fc.ul.pt/archive/papers/INESC-RT-101-91.pdf
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        INESC Technical Report RT/101-91, Lisboa, Portugal, November 1991.
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|month=
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        nov
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|year=
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        1991
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|Project=
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        Project:Delta-4
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|ResearchLine=
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        Timeliness and Adaptation in Dependable Systems (TADS)
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}}
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Latest revision as of 13:02, 15 January 2013

Paulo Veríssimo, José Rufino, Henrique Fonseca, Luís Rodrigues

INESC, Tech. Rep. RT/101-91, Nov. 1991.

Abstract: There is an increasing number of distributed applications, some of them fault-tolerant, and it has been recognized that its construction may benefit from the existence of reliable broadcast protocols. Some systems are clock-driven, exhibiting tight synchrony: they rely on clock synchronization and space redundancy. Others, like the xAMp, an atomic multicast protocol for local area networks, are clock-less. This work deals with the performance implications of supporting soft real-time distributed applications, with clock-less reliable broadcast protocols. In particular it analyses the performance of the lower layers of the Delta-4 communication system, i.e. it studies the time domain behaviour of both Abstract Network and xAMp components. Throughout this report we will develop a generic model that allow us to predict protocol execution times in any architecture. Case studies concerning protocol execution on two target LANs - the 10Mbps Token-Bus and the 100 Mbps FDDI - will be presented, showing how protocol performance scales with the utilization of high-speed networks. Additionally a set of guidelines concerning the dimensioning of xAMp timers and performance optimizations, useful for both system configuration implementation, are presented.

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Project(s): Project:Delta-4

Research line(s): Timeliness and Adaptation in Dependable Systems (TADS)

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